<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>


<style>

    a {
        display: inline-block;

        width: 175px;
        height: 75px;
        text-decoration: none;

        color: white;
        text-align: center;
        line-height: 75px;
        font-size: 20px;
        border-radius: 10px;
    }

    a:hover {
        background-color: black;
    }

    .one {
        background-color: #d04f58;
    }

    .two {
        background-color: #39a0ca;
    }

    .three {
        background-color: #7e49c7;
    }

    .four {
        background-color: #c45ace;
    }
</style>

<body>


<a href="#" class="one">
    五彩导航
</a>
<a href="#" class="two">
    五彩导航
</a>
<a href="#" class="three">
    五彩导航
</a>
<a href="#" class="four">
    五彩导航
</a>
</body>
</html>